Copper One completes Phase 1 drilling at Majuba Hill; preps 4,000-foot Phase 2
VANCOUVER, BC — August 2 3 , 2026 — Copper One Resources Corp. (CSE: CEXY | OTCID: CEXYF | FSE: IW8 | WKN: A42AGR) (“Copper One” or the “Company”) is pleased to announce the successful completion of its Phase 1 core drilling program consisting of a total of 4,015 feet (1,224 meters) at the Company’s flagship Majuba Hill Copper-Silver-Gold Project, located in Pershing County, Nevada.
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Figure 1 : 2026-Phase 2 Drill Pad providing the Company with drill access to the relatively untested north-west ridge.
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Figure 2 : Road construction along the ridge leading to drill pad 26DPH-8 at Majuba Hill.
The Company is also pleased to report that all site preparations for its 2026 Phase 2 drill program have been completed. Four drill pads and associated drill sites are now fully prepared for the planned 4,000-foot (1,219-metre) Phase 2 program, positioning the Company to commence the next phase of drilling.
“The successful completion of the 2026 Phase 1 drill program marks another important milestone in our 2026 exploration program at Majuba Hill," said David Greenway, President and CEO of Copper One. "The drilling successfully intersected the targeted north-northwest-trending breccia corridor, confirming our geological model and providing valuable information on the structural controls and alteration associated with the mineralizing system. The observed tourmaline alteration, brecciation and intrusive relationships enhance our confidence in the evolving geological interpretation and will help refine future drill targeting as we continue to systematically evaluate the scale and continuity of the Majuba Hill copper-silver-gold system.”
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Figure 3 : Tourmaline breccia intersected in Hole MHB-38 at approximately 338 feet (103.0 metres), corresponding to the projected north-northwest-trending breccia corridor identified through recent geological mapping.
All drill core from the Phase 1 program has been transported to the Company’s secure core facility in Elko, Nevada, where it is currently being logged, photographed, sampled and prepared for shipment to ALS Laboratories.
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Figure 4 : Core from hole MHB-37B at 2,389 feet (728 metres), displaying visible pyrrhotite, pyrite and chalcopyrite associated with secondary biotite alteration.
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Figure 5 : Visible chalcopyrite-pyrrhotite mineralization within the breccia zone in hole MHB-37B at approximately 1,982 feet (604 metres).
About the Majuba Hill Copper-Silver-Gold Project, Nevada
Majuba Hill is Copper One Resources Corp.'s flagship copper-silver-gold exploration project, located in Pershing County, Nevada, USA, the world's top-ranked mining jurisdiction according to the Fraser Institute's 2025 Annual Survey of Mining Companies. The property comprises approximately 9,684 acres (3,919 hectares) and is situated approximately 70 miles (113 road kilometres) southwest of Winnemucca and 156 miles (251 kilometres) northeast of Reno.
The project benefits from excellent infrastructure, including year-round road access, nearby electrical power, water, and access to a skilled mining workforce. Majuba Hill is a past-producing copper mine with an extensive exploration database, including approximately 89,395 feet (27,248 metres) of historical drilling, providing a strong technical foundation for ongoing exploration aimed at further defining the extent and economic potential of the mineralized system.
Exploration has outlined a large copper-silver-gold mineralized hydrothermal system that remains open for expansion. Current exploration is focused on advancing the Company's geological model through systematic drilling, geological mapping, geochemical sampling, and structural interpretation to evaluate the scale, continuity, and significance of mineralization. Additional drilling and technical studies will be required to further define the extent and economic potential of the mineralized system.
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Figure 6 : Majuba Hill 2026 drilling target zones, completed drill holes and planned drill holes.
Technical Disclosure and Qualified Person
The scientific and technical information contained in this news release has been reviewed and approved by Lawrence Segerstrom, a consulting geologist who is a “Qualified Person” as such term is defined under National Instrument 43-101 – Standards of Disclosure for Mineral Projects ( “NI 43-101” ) .
About Copper One Resources Corp.
Copper One Resources Corp. is focused on identifying, acquiring, and advancing high-potential copper, copper-silver-gold, and copper-molybdenum projects to help meet the growing global demand for critical metals required for electrification, AI infrastructure and data centres, renewable energy, defence, and the modernization of power systems.
The Company’s flagship asset is the Majuba Hill Copper-Silver-Gold District, located approximately 156 miles (251 kilometres) from Reno, Nevada. Majuba Hill is an exploration-stage porphyry copper project situated in a premier mining jurisdiction with excellent infrastructure, where ongoing exploration is focused on evaluating the scale and continuity of a large copper-silver-gold mineralized system.
Copper One also owns a 100% interest in the Redonda Copper-Molybdenum Project, located northeast of Campbell River in British Columbia’s Vancouver Mining Division. The district-scale project comprises approximately 2,746.46 hectares (6,786 acres) across nine mineral claims and hosts a porphyry-style copper-molybdenum system within the highly prospective Coast Suture Zone, a geological belt known for significant porphyry copper and skarn mineralization. The Company believes Redonda has the potential to become a significant long-term exploration asset as systematic exploration continues to evaluate the scale and continuity of the mineralized system.
In addition, Copper One holds an option to earn up to a 100% interest in the Redhill Property, located south of Ashcroft, British Columbia, adjacent to the Trans-Canada Highway. The 4,736-hectare (11,704-acre) property hosts volcanogenic massive sulphide (VMS) mineralization prospective for copper, zinc, silver and gold, while also demonstrating potential for epithermal gold mineralization.
Copper One also owns a 100% interest in the Sport Project in Utah, expanding the Company’s portfolio of North American copper exploration assets.
Copper One is advancing its portfolio through systematic exploration, modern geological modelling, and disciplined technical evaluation. The Company remains committed to responsible exploration practices, technical transparency, and creating long-term shareholder value through disciplined exploration and the advancement of critical metals projects across North America.
All stakeholders are encouraged to follow the Company on its social media profiles on and X.com , and to subscribe for updates at https://copperone.com/
Neither the Canadian Securities Exchange nor its Market Regulator (as that term is defined in the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy or accuracy of this release.
On Behalf of Copper One Resources Corp.
“David Greenway”
David C. Greenway
President & CEO
For further information, please contact:
Brent Rusin
Corporate Communications
E: info@copperone.com
P: 1 (236) 788-0643
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www.copperone.com
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Forward-Looking Information
This news release contains certain forward-looking statements and forward-looking information (collectively, “forward-looking statements”) within the meaning of applicable Canadian securities laws. Forward-looking statements are generally identified by words such as “anticipates,” “believes,” “expects,” “intends,” “plans,” “proposes,” “estimates,” “may,” “will,” “could,” “should,” “potential,” “targets” and similar expressions.
Forward-looking statements in this news release include, but are not limited to, statements regarding the timing and receipt of assay results from holes MHB-37B and MHB-38; the commencement, timing, scope and completion of the Company’s planned 4,000-foot Phase 2 drill program at Majuba Hill; the Company’s ability to refine future drill targets; the interpretation of geological structures, alteration, brecciation and mineralization; the potential scale, continuity and significance of the Majuba Hill mineralized system; future exploration activities and technical studies; and the Company’s ability to advance its mineral projects and obtain sufficient financing to carry out its planned programs.
These forward-looking statements are based on management’s current expectations, estimates, assumptions and projections as of the date of this news release. Such assumptions include, without limitation, that assay results will be received within anticipated timelines; that the Company will be able to commence and complete its planned Phase 2 drill program as currently contemplated; that required personnel, equipment, services, permits and financing will be available on acceptable terms; that exploration activities will not be materially disrupted; and that the Company’s geological interpretations will continue to be supported by additional exploration data.
Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause actual results, performance or achievements to differ materially from those expressed or implied by such statements. These risks and uncertainties include, among others, delays in receiving assay results; the possibility that assay results may not confirm visual observations or geological interpretations; changes to exploration plans based on new information; operational and technical difficulties; availability and cost of drilling equipment, contractors and qualified personnel; adverse weather or site conditions; permitting and regulatory risks; fluctuations in commodity prices and financial markets; the speculative nature of mineral exploration; the absence of a defined mineral resource at Majuba Hill; the Company’s ability to obtain financing on acceptable terms or at all; and other risks associated with the mineral exploration industry. Additional risk factors are described in the Company’s continuous disclosure filings available under its profile on SEDAR+ at www.sedarplus.ca .
There can be no assurance that the forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated. Readers are cautioned not to place undue reliance on forward-looking statements. The Company undertakes no obligation to update or revise any forward-looking statements as a result of new information, future events or otherwise, except as required by applicable securities laws.
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August 23, 2026 - 9:44 AM PDT
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